Home / 21,010,321.28-31,506,328.92-11,160,229.16

Finding the Fourth Proportional to 21,010,321.28, 31,506,328.92 and 11,160,229.16

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Solution

The fourth proportional to 21,010,321.28, 31,506,328.92 and 11,160,229.16 is: 16,735,481.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,010,321.28 : 31,506,328.92 = 11,160,229.16 : x
  2. Step 2: Convert to fraction form
    21,010,321.28/31,506,328.92 = 11,160,229.16/x
  3. Step 3: Cross multiply
    21,010,321.28x = 31,506,328.92 × 11,160,229.16
  4. Step 4: Simplify right side
    21,010,321.28x = 351,617,850,858,151.94
  5. Step 5: Solve for x
    x = 351,617,850,858,151.94/21,010,321.28
  6. Step 6: Final answer
    x = 16,735,481.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.